Hydroaeroplane



oct. 19, 192e. 1,603,304

P. GQZIMMERMANN HYDROAEROPLANE orig-mal Filed oct. 25, 1921 s sheets-sheet 1 i j .INLTENTOR ,mw

` A TTORNEY f\c\ Oct. 19 1926. 1,603,304

' P. G. zlMMl-:RMANN y HYDROAEROPLANE Qriginal Filed Oct. 25, 1921 5 Sheets-Sheet 2 A TTORNEY Oct. 19,1926.` 1,603,304

P. G. ZIMMERMANN HYDROAEROPLANE original Filed oct. 25, 1921v s sheets-sheet 5 f ffm Mv rammed oct. 19, `1926.

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UNITED STATES PAUL G. ZIMMERMANN, OF KEYPORT, NEW JERSEY, AAVSSIGI'INI'OIR. TO AEROMARINE PLANE & MOTOR COMPANY, 0F NEW YORK,A N. Y., A CORPORATION OF NEW YORK.

HYDROAEROPLAN E.

Application led October 25, 1921, Serial No. 510,279. Renewed March 11, 1926.

This invention relates to hydroaeroplanes, and more particularly to that type of hydroaeroplane capable of making a landing on land or on the dec-k of a vessel. The objects of this invention are to provide a craft having a great range of forward and downward vision, a great range of gun-tire, and at the same time maintain a low center of gravity, important for-landing on a vessel, together with a maximum of seaworthiness.

These objects are attained by a novel structure and combination of elements described in the, annexed specification and i 1 lustrated in` the drawings forming a part hereof.

In said drawings:

Fig. 1 is a side elevation;

Fig. 2 is a front elevation;,and

Fig. 3 is a top plan view.

A portion of the wings and Outrigger are broken away in the various views to more clearly illustrate the embodiment of .the invention.

The drawings illustrate a monoplane having rightand left-hand wing portions 1 and 2 and a center wing portion 3, in.wl1ich,`aty

the front, ismounted a motor 4 having secured thereto. a forward propeller 5. Mounted beneath the wing is a nacelle 6, such mounting being accomplished by means of suitable struts and braces,some of which are marked a.

Carried by and beneath the wing of the plane, and at a short distance below, and atl opposite sides of, the nacelle, are right and left pontoons 7 and 8 having struts and braces, some of which are marked b, connecting with the nacelle in a suitable manner, apparent to those skilled in the art, so as to cause the pontoons to be carried by the plane and nacelle in flight and to assume the weight of the entire plane when alighting. The plane is provided with a tail 9 and tail elevator 10, the tail being the usual form and having a rudder portion 11 suitlated receiving sections formed byl fore and.l

aft walls 19 and 20, together with bottom door portions 22 and 23 capable of closing.

By virtue of thev general construction, the machine has a very low center of gravity in relation to the landing gear or the pontoons. This is very desirable when'the h droaero- 'plane is to make a landing on boar a vessel,

or on land, as it prevents disastrous forward tipping.

Referring to Fig. 3, the pilot seat is illustrated at 24 and it can bel clearlyseen that the pilot has an unobstructed downward and forward View between the sides of thenacelle and the pontoons, las well'` as a clear View in other directions. c

' The gunners seat illustrated at 25, and the gun and gun mounting'at 26, show the wide firing range without any obstruct-ions except such small obstructions as the lower end of the rudder 11 and the two vertical struts 27.

What I claim as new is: y

In a hydroaeroplane,the combination with the wing, of a motor mounted in the wing and a tractor propeller driven by the motor, a pair of side floats which together support the machine in the Water, a nacelle mounted beneath the wing land somewhat above the floats so as to be out of the water, and an Outrigger tail supported from the floats and the wing. f

. PAUL G. ZIMMERMANN. 

